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Sabeha31
@Sabeha31
May 2019
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Bonjour, pouvez m'aider à resoudre les équations suivante svp ? Je n'y arrive pas.
A). 2x +(5x - 2) = 7x + 9 - x .
B). 12 - (x + 3) = 2x + (-5 +x).
C). (7x + 4) - (-3x + 1) = 0 .
Merci d'avance.
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Eliott78
Verified answer
Bonjour,
A). 2x +(5x - 2) = 7x + 9 - x
7x - 2 = 6x +9
7x - 6x = +2 + 9
x = 11
B). 12 - (x + 3) = 2x + (-5 +x).
12 -x -3 = 3x - 5
-x - 3x = -12 +3 -5
-4x = -17 + 3
x = -14/-4
x = 7/2
x = 3,5
C). (7x + 4) - (-3x + 1) = 0
7x + 4 + 3x -1 = 0
10x +3 = 0
x = - 3/10
x = - 0,3
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Bonjour pouviez vous me traduire cette phrase svp?? merci - Match the superpowers to the corresponding character.
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Verified answer
Bonjour,A). 2x +(5x - 2) = 7x + 9 - x
7x - 2 = 6x +9
7x - 6x = +2 + 9
x = 11
B). 12 - (x + 3) = 2x + (-5 +x).
12 -x -3 = 3x - 5
-x - 3x = -12 +3 -5
-4x = -17 + 3
x = -14/-4
x = 7/2
x = 3,5
C). (7x + 4) - (-3x + 1) = 0
7x + 4 + 3x -1 = 0
10x +3 = 0
x = - 3/10
x = - 0,3